Product Description
Product Overview
The Yokogawa ALR121-SE1 is a Serial Communication Module designed for RS-422/RS-485 communication with 2 ports. It supports both point-to-point and multipoint connections and is suitable for industrial systems requiring reliable serial data exchange.
Technical Specifications
The ALR121-SE1 Serial Communication Module has the following specifications (specific to ALR121 unless otherwise noted):
| Item | Specification |
|---|---|
| Model | ALR121 |
| Interface | RS-422/RS-485 |
| Connection Method | Point-to-point (RS-422) Multipoint (RS-485) |
| Communication Function | Half-duplex |
| Synchronization Method | Start-stop synchronization |
| Transmission Speed | 1200/2400/4800/9600/19200/38400 bps (*1) |
| Transmission Code | ASCII/binary |
| Character Length | 7/8 bits |
| Stop Bit Length | 1/2 bits |
| Parity Check | None/even/odd |
| Lag Time After Data Transmission | 1 ms (The lag time to start receiving data again after data transmission) |
| Transmission Distance | Maximum 1200 m (total extended length) |
| Installation Method | Mounted on ANB10◻, ANB11◻, ANR10◻, AFF50◻, AFV10◻, AFV30◻, or AFV40◻ |
| I/O Wiring | Cable with 3-pair shield, AKB161, or AKB162 |
| Wiring Connection | Clamped with terminal block’s M4 screws (5 poles x 2) |
| Current Consumption | 0.5 A |
| Weight | 0.3 kg |
Model and Suffix Codes
The ALR121-SE1 includes the following configuration details:
| Category | Details |
|---|---|
| Model | ALR121 Serial Communication Module (RS-422/RS-485, 2 port) |
| Suffix Codes |
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